Mapping of wave packets in direct fragmentation via pump-probe frequency integrated fluorescence spectroscopy

Volker Engel; Niels Engholm Henriksen

doi:10.1063/1.480566

Mapping of wave packets in direct fragmentation via pump-probe frequency integrated fluorescence spectroscopy

Volker Engel, Niels Engholm Henriksen

Department of Chemistry

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Abstract

We consider femtosecond excitation of a molecule to a dissociative electronic state. The quantum dynamics is recorded via delayed excitation to a higher electronic state and measurement of the total fluorescence from this state detected as a function of delay time. It is shown that the signal can be used to determine the probability density distribution of the outgoing wave packet describing the fragmentation. This, in particular, applies to the case of fragment detection since then the time-dependent signal directly measures the probability flux at a fixed value of the dissociation coordinate. Numerical examples illustrate the procedure. (C) 2000 American Institute of Physics.

Original language	English
Journal	Journal of Chemical Physics
Volume	112
Issue number	1
Pages (from-to)	106-111
ISSN	0021-9606
DOIs	https://doi.org/10.1063/1.480566
Publication status	Published - 2000

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Copyright (2000) American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics.

Keywords

MOTION
EXCITATION
PHOTODISSOCIATION
MOLECULES
DYNAMICS

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http://link.aip.org/link/?JCPSA6/112/106/1

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title = "Mapping of wave packets in direct fragmentation via pump-probe frequency integrated fluorescence spectroscopy",

abstract = "We consider femtosecond excitation of a molecule to a dissociative electronic state. The quantum dynamics is recorded via delayed excitation to a higher electronic state and measurement of the total fluorescence from this state detected as a function of delay time. It is shown that the signal can be used to determine the probability density distribution of the outgoing wave packet describing the fragmentation. This, in particular, applies to the case of fragment detection since then the time-dependent signal directly measures the probability flux at a fixed value of the dissociation coordinate. Numerical examples illustrate the procedure. (C) 2000 American Institute of Physics.",

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AU - Engel, Volker

AU - Henriksen, Niels Engholm

N1 - Copyright (2000) American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics.

PY - 2000

Y1 - 2000

N2 - We consider femtosecond excitation of a molecule to a dissociative electronic state. The quantum dynamics is recorded via delayed excitation to a higher electronic state and measurement of the total fluorescence from this state detected as a function of delay time. It is shown that the signal can be used to determine the probability density distribution of the outgoing wave packet describing the fragmentation. This, in particular, applies to the case of fragment detection since then the time-dependent signal directly measures the probability flux at a fixed value of the dissociation coordinate. Numerical examples illustrate the procedure. (C) 2000 American Institute of Physics.

AB - We consider femtosecond excitation of a molecule to a dissociative electronic state. The quantum dynamics is recorded via delayed excitation to a higher electronic state and measurement of the total fluorescence from this state detected as a function of delay time. It is shown that the signal can be used to determine the probability density distribution of the outgoing wave packet describing the fragmentation. This, in particular, applies to the case of fragment detection since then the time-dependent signal directly measures the probability flux at a fixed value of the dissociation coordinate. Numerical examples illustrate the procedure. (C) 2000 American Institute of Physics.

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KW - EXCITATION

KW - PHOTODISSOCIATION

KW - MOLECULES

KW - DYNAMICS

U2 - 10.1063/1.480566

DO - 10.1063/1.480566

M3 - Journal article

VL - 112

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JO - Journal of Chemical Physics

JF - Journal of Chemical Physics

SN - 0021-9606

IS - 1

ER -

Mapping of wave packets in direct fragmentation via pump-probe frequency integrated fluorescence spectroscopy

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